<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        #gy{
            color: green;
        }
        .c1{
            color: yellow;
        }
        input[type=text],body>p{
            background-color: red;
        }
        body>div>div>div>p{color: pink}
        div div p{background-color: yellow}
        a:link{color: green}
        a:visited{color: red}
        a:hover{color: yellow}
        a:active{color: pink}
    </style>
</head>
<body>
<ul>
  <li>刘备</li><li id="gy">关羽</li><li class="c1">张飞</li>
</ul>
<p>香蕉</p><p class="c1">苹果</p>
<input type="text">
<input type="password">
<div>
  <p>p1</p>
  <div><p>p2</p></div>
  <div><div><p>p3</p></div></div>
</div>
    <a href="https://www.tedu.cn">达内官网</a>

</body>
</html>